Matched Pair RCA 6AG7 Vacuum Tubes NOS-Testing Philips Miniwatt 9U8 " but was made by

" but was made by Sylvania

5 standard deviation of 4000 micromhos

Transconductance measured 2000/1900 micromhos for Tube One and 2000/2000 micromhos for Tube Two

I would rate it a 6

gas and transconductance

Matched Pair RCA 6AG7 Vacuum Tubes NOS-Testing Philips Miniwatt 9U8 " but was made byThis new old stock testing, almost perfectly matched pair of RCA (Hewlett Packard By RCA) 6AG7 tubes were tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. They measured 48 and 49 where minimum (65%) is 30 and 100% is 46. WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES. IF IT'S NOT LISTED, WE MAY HAVE IT. PLEASE ALSO SEE OUT ETSY SISTER SITE "LOWTECHTWOO" AND OR CALL OR TEXT US AT 202 372 6931 IF